Description : The metallic Constituents of hard water are – (1) Magnesium, calcium and tin (2) Iron, tin and calcium (3) Calcium, magnesium and iron (4) Magnesium, tin and iron
Last Answer : (3) Calcium, magnesium and iron Explanation: Hard water is water that has high mineral content. In domestic settings, hard water is often indicated by a lack of suds formation when soap is ... water hardness is a concern, water softening is commonly used to reduce hard water's adverse effects.